The thing in his chest
iron man
No.
it depends on what suit he wears
Iron Man Master Chief cuz then he can call in his whole army with Warthogs, and all those other powerful vehicles. But if that ain't happening then I'm rooting for Iron Man.
hulkbuster it beat the hulk
An ironmonger is man who works with iron and makes only products made of iron.
In "Iron Man," Obadiah Stane created a robot called the Iron Monger. This powerful suit was designed to rival Tony Stark's Iron Man armor and was equipped with advanced weaponry and technology. The Iron Monger was ultimately used in a climactic battle against Tony Stark.
In the comics, it's the Mandarin, who can also be seen in the tv-series "Iron Man: Armored Adventures" The mandarin is also believed to be the main villain for Iron Man 3 coming out in 2013
In Iron Man 2, the core of the device in his heart is making him sick. He has to find a new element to reduce the effects of it on his body.
he has a suit that protects him. It makes him fly and helps defend him from enemies
he chases and kills the bear
No! -He in fact does have several suits you may or may not be referring to. He has the Arctic Armor which is an off blue and silver which he wore in Iron Man 318, the Iron Man fantastic four armor which is more of a blue and black, the Iron Man stealth armor which appears in Iron Man #152, or the Patriot Armor which I think makes it's first appearance in the Dark Avengers story line but I may be mistaken.